Seiko Cal. 4523 - 770

The Seiko 4523-770 represents an important milestone in Seiko's 1966 lineup. Powered by the 4523 caliber with 28j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-e413a22f711b]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

42mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1966

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